A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

Aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what astronomers know about how long a day is on the cold and windy world.

The Flying Sun 1000 drone can facilitate construction work, emergency response, and filming in total darkness thanks to its 288 LED lamps.

A line of glowing lights streaking silently across the night sky left many residents across the Southeast pausing in awe — and confusion.